Square wave detector - DSP

This is a discussion on Square wave detector - DSP ; Hi, I need to detect a presence of square wave. If square wave is there I need to generate a logic 0 and this square wave is not present I need to generate logic 1 or vise versa. Can you ...

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Square wave detector

  1. Default Square wave detector

    Hi,
    I need to detect a presence of square wave. If square wave is there I
    need to generate a logic 0 and this square wave is not present I need
    to generate logic 1 or vise versa. Can you suggest me a circuit for
    this functionality.

    Thanks in advance

    Regards
    Pinku


  2. Default Re: Square wave detector

    There are numerous ccts that would do this from a retriggerable
    monostable to a comparator with feedback.

    www.ckp-railways.talktalk.net/pcbcad28.htm


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